Bosch Symphony Horn – Overview
The Bosch Symphony Horn is a premium automotive horn system engineered to deliver a harmonious yet powerful dual-tone alert, crafted for improved acoustic presence and safety on the road.
Key Features
Dual-Tone (420 Hz & 500 Hz)
Combines high and low pitches to produce a layered, melodic tone that enhances sound clarity and recognition.
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High Sound Pressure (105–118 dB)
Produces a loud alert ranging between 105 to 118 dB—designed to be heard clearly even in noisy driving environments.
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Standard 12V Compatibility
Built for vehicles with standard 12V electrical systems for easy integration.
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Compact Dimensions (~95 mm Diameter)
With a diameter of around 95 mm, these horns fit well in modern engine bays where space is limited.
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Built-In Harmonic Diaphragm
Incorporates Bosch’s harmonic diaphragm technology to improve sound propagation and help other road users better determine the origin of the horn.
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Durable Design
Engineered with Bosch’s quality standards, offering reliable performance for cars, SUVs, and light commercial vehicles.
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Installation & Usage Tips
Recommended to Use a Relay
Due to its high draw (up to 4 A in some variants), it's advisable to install the horn with a relay to protect the vehicle’s wiring and ensure reliable performance.
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Simple Replacement Process
Many users have successfully swapped these into models like the Honda City by accessing and replacing the original horn via the front bumper or grille area.
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Testing & Sound Quality
Video demonstrations show the horn delivering a rich, commanding “Creta-type” fanfare sound common in premium SUVs.
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Why Choose Bosch Symphony Horns?
Benefit Description
Distinctive Sound Dual-tone output creates a musical yet attention-grabbing alert.
High Audibility Up to 118 dB ensures visibility even amidst noise pollution.
Compact Fit Ideal for modern vehicles with constrained engine bay layouts.
Proven Reliability Manufactured by Bosch, ensuring durability and consistent performance.
Advanced Acoustics Harmonic diaphragm helps direct sound for better signaling.
Suggested Tagline
“Bosch Symphony Horn – Dual-Tone 420 Hz + 500 Hz, 105–118 dB, Compact 12V Unit with Harmonic Diaphragm for Clear, Powerful Warning”
